Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	May 31, 2018	May 31, 2017	May 31, 2016
Income Statement [Abstract]
Revenues	$ 36,397	$ 34,350	$ 32,376
Cost of sales	20,441	19,038	17,405
Gross profit	15,956	15,312	14,971
Demand creation expense	3,577	3,341	3,278
Operating overhead expense	7,934	7,222	7,191
Total selling and administrative expense	11,511	10,563	10,469
Interest expense (income), net	54	59	19
Other expense (income), net	66	(196)	(140)
Income before income taxes	4,325	4,886	4,623
Income tax expense	2,392	646	863
NET INCOME	$ 1,933	$ 4,240	$ 3,760
Earnings per common share:
Basic (in dollars per share)	$ 1.19	$ 2.56	$ 2.21
Diluted (in dollars per share)	1.17	2.51	2.16
Dividends declared per common share (in dollars per share)	$ 0.78	$ 0.70	$ 0.62